WO2024036823A1

WO2024036823A1 - Pressurizing and shaping apparatus for battery cell

Info

Publication number: WO2024036823A1
Application number: PCT/CN2022/136896
Authority: WO
Inventors: 朱承奎; 韩祥坤; 赵小成; 陈辰
Original assignee: 昂华（上海）自动化工程股份有限公司
Priority date: 2022-08-19
Filing date: 2022-12-06
Publication date: 2024-02-22
Also published as: CN115360400A

Abstract

A pressurizing and shaping apparatus for a battery cell, the apparatus comprising a support frame, a cross beam, a load-bearing sliding plate and a fixed frame, wherein the fixed frame is provided with: a length-direction pressurization mechanism (4), which is used for pressurizing, in a lengthwise direction, a battery cell to be packed; a length-direction reference apparatus (8); a width-direction pressurization mechanism (7), which is used for pressurizing said battery cell in a widthwise direction; a width-direction reference apparatus (9); a height-direction pressurization mechanism (5), which is used for pressurizing said battery cell in a heightwise direction; and an attachment mechanism (11), which is used for attaching to said battery cell and then lifting same. The pressurizing and shaping apparatus for a battery cell can effectively perform pressurization and shaping on a battery cell and then convey same into a PACK box; moreover, the apparatus can reduce the volume occupied by non-battery-cell components in the PACK box, improve the energy density of a battery, and improve the endurance mileage of a new energy vehicle.

Description

A battery core pressurizing and shaping device

Technical field

The invention relates to the technical field of mechanical automation, and in particular to a battery core pressurizing and shaping device.

Background technique

With the popularity of new energy electric vehicles, more and more people have purchased new energy electric vehicles. However, the cruising range of new energy vehicles is still the focus of consumers' attention. Therefore, improving the cruising range of new energy electric vehicles has become a popular issue. Important factors for new energy electric vehicles.

For new energy batteries, how to achieve greater space utilization has always been an important goal of battery structure design and an important factor affecting whether the battery energy density can be improved. Therefore, increasing the energy density ratio of new energy batteries can effectively improve the efficiency of new energy batteries. Energy vehicle cruising range. Therefore, there is an urgent need to propose an environmentally friendly, energy-saving, efficient, reliable, and low-maintenance cost integrated battery cell pressurizing and shaping device to meet production needs.

Contents of the invention

In view of this, embodiments of the present application provide a battery cell pressurizing and shaping device, which can efficiently pressurize and shape the battery cells and then send them into the PACK box, while reducing the volume occupied by non-battery core components in the PACK box and increasing battery energy. density ratio to improve the cruising range of new energy vehicles.

The embodiments of this application provide the following technical solution: a battery core pressurizing and shaping device, including:

A support frame, which includes a rectangular support frame and support legs fixed under the support frame; first rack transmission mechanisms are respectively provided on two opposite side beams of the support frame;

Cross beam, the two ends of the cross beam are respectively provided with first transmission gears that cooperate with the first rack transmission mechanism, so that the cross beam can move on the side beams of the support frame; the side walls of the cross beam are provided with second rack transmission mechanism;

A load-bearing slide plate, the inner wall of the load-bearing slide plate is provided with a second transmission gear that cooperates with the second rack transmission mechanism, so that the load-bearing slide plate can move on the beam; the outer wall of the load-bearing slide plate is provided with a vertical Straight direction drive device;

The fixed frame is fixedly installed on the thrust output end of the driving device. The fixed frame is a rectangular frame. A lengthwise pressing mechanism is provided on one side of the fixed frame in the length direction for adjusting the length of the fixed frame. To pressurize the battery core to be installed, a length-direction reference device is provided on the other side in the length direction to provide a pressure reference on the opposite side of the length-direction pressurizing mechanism; a length-direction reference device is provided on one side of the fixing frame in the width direction. A width-direction pressurizing mechanism is used to pressurize the battery core to be installed in the width direction, and a width-direction reference device is provided on the other side of the width direction to provide a pressurization reference on the opposite side of the width-direction pressurization mechanism; The fixed frame is provided with a vertically downward pressing mechanism in the height direction, which is used to pressurize the battery core to be installed in the height direction; the bottom wall of the fixed frame is provided with a vertical adsorption mechanism, which is used to absorb the cells to be installed. To install the battery core, pull up the battery core to be installed.

Further, the length direction pressing mechanism includes a first servo motor fixed on the fixed frame, the output end of the first servo motor is connected to a first guide mechanism, and the first guide mechanism is connected to a plurality of parallel arranged The first pressure plate is used to pressurize the battery core to be installed in the length direction under the driving of the first servo motor;

The width direction pressing mechanism includes a second servo motor fixed on the fixed frame, the output end of the second servo motor is connected to a second guide mechanism, and the second guide mechanism is connected to a plurality of second servo motors arranged side by side. a pressure plate, used to pressurize the battery core to be installed in the width direction under the driving of the second servo motor;

The height direction pressing mechanism includes a third servo motor fixed on the fixed frame. The output end of the third servo motor is connected to a third guide mechanism. The third guide mechanism is connected to a plurality of third guide mechanisms arranged in parallel. The pressure plate is used to pressurize the battery core to be installed in the height direction driven by the third servo motor.

Further, the length direction reference device includes a cam mechanism fixed on the fixed frame, the follower of the cam mechanism is connected to a spring, the spring is connected to the first reference plate, and the follower of the cam mechanism is connected to the first reference plate. After squeezing the spring and pushing the first reference plate to move to the longitudinal reference position, the first reference plate moves away from the longitudinal reference position under the resilience of the spring;

The width direction reference device includes a first cylinder fixed on the fixed frame. The output end of the first cylinder is connected to the fourth guide mechanism. The fourth guide mechanism is connected to the second reference plate. A cylinder is used to push the fourth guide mechanism, so that the fourth guide mechanism pushes the second reference plate to move to the width direction reference position.

Further, the adsorption mechanism includes a vacuum generator fixed on the fixed frame, a diverter device connected to the vacuum generator, and a plurality of elastic adsorption columns arranged on the diverter device, and the plurality of elastic adsorption columns are in an array. They are arranged and fixed on the bottom wall of the fixing frame to form an adsorption surface for adsorbing the batteries to be installed.

Further, it also includes a pocket bottom protection mechanism. The pocket bottom protection mechanism includes a second cylinder fixed on the fixed frame. The output end of the second cylinder is connected to the active side of the linkage mechanism. The slave side of the linkage mechanism is The moving side is connected to the protective plate to drive the protective plate so that the protective plate is located below the adsorbed battery core to be installed.

Further, it also includes a box entry guide mechanism, which includes a third cylinder arranged on the fixed frame, the output end of the third cylinder is connected to a guide rod, and the third cylinder drives the guide. The rod moves downward into the PACK box located below the fixing frame, so that the battery module to be installed enters the PACK box along the guide rod.

Furthermore, end plates are fixedly arranged around the battery cell module to be installed, and a guide groove adapted to the shape of the guide rod is provided on the end plate. The guide rod is located in the guide groove, so that the The battery module to be installed enters the PACK box along the guide rod.

Further, the cross beam is a rectangular frame structure, the second rack transmission mechanism is respectively provided on the beams on opposite sides of the frame, and the two second rack transmission mechanisms are respectively provided with load-bearing sliding plates. The inner side walls of the load-bearing sliding plates are respectively provided with two second transmission gears adapted to the second rack transmission mechanism, and the outer side walls of the two load-bearing sliding plates are respectively provided with vertical driving devices.

Further, the driving device is a Z-axis servo electric cylinder.

Further, the first rack transmission mechanism is driven by an X-axis servo motor, and the second rack transmission mechanism is driven by a Y-axis servo motor.

Compared with the existing technology, the beneficial effects achieved by at least one of the above technical solutions adopted in the embodiments of this specification include at least: the cell pressurizing and shaping device of the embodiment of the present invention has a reasonable structural design, is energy-saving and environmentally friendly, efficient and reliable, and has low maintenance costs. Low, a large number of cells can be pressurized and shaped and then packed inside the PACK box, which improves the energy density ratio of new energy batteries. That is, the battery capacity of the same unit volume will be higher than that of the original battery, reducing the occupation of non-cell components in the PACK box. volume, thereby improving the cruising range of new energy vehicles.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

Figure 2 is a partial structural schematic diagram of an embodiment of the present invention;

Figure 3 is another partial structural schematic diagram of an embodiment of the present invention;

Figure 4 is another partial structural schematic diagram of an embodiment of the present invention;

Among them, 1-X-axis servo motor, 2-Y-axis servo motor, 3-Z-axis servo electric cylinder, 4-length direction pressing mechanism, 5-height direction pressing mechanism, 6-bottom protection mechanism, 7-width direction Pressurizing mechanism, 8-length direction reference device, 9-width direction reference device, 10-carton guide mechanism, 11-adsorption mechanism.

Detailed ways

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, and the technical solutions of the present invention will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 to 4, an embodiment of the present invention provides a battery core pressurizing and shaping device, which includes: a support frame, a cross beam, a load-bearing sliding plate, and a fixing frame.

The support frame includes a rectangular support frame and support legs fixed under the support frame; first rack transmission mechanisms are respectively provided on two opposite side beams of the support frame; both ends of the cross beam are respectively provided with the The first rack transmission mechanism cooperates with the first transmission gear of the transmission so that the cross beam can move on the side beam of the support frame; the side wall of the cross beam is provided with a second rack transmission mechanism; the load-bearing slide plate The inner wall is provided with a second transmission gear that cooperates with the second rack transmission mechanism so that the load-bearing sliding plate can move on the cross beam; the outer wall of the load-bearing sliding plate is provided with a vertical driving device; The fixed frame is fixedly installed on the thrust output end of the driving device. The fixed frame is a rectangular frame. A lengthwise pressing mechanism 4 is provided on one side of the fixed frame in the lengthwise direction for charging the power to be installed in the lengthwise direction. The core is pressurized, and a length-direction reference device 8 is provided on the other side of the length direction to provide a pressure reference on the opposite side of the length-direction pressing mechanism 4; a width-direction reference device 8 is provided on one side of the width direction of the fixed frame. The pressurizing mechanism 7 is used to pressurize the battery core to be installed in the width direction, and a width-direction reference device 9 is provided on the other side of the width direction to provide a pressurization reference on the opposite side of the width-direction pressurizing mechanism 7; in A vertically downward height-direction pressurizing mechanism 5 is provided in the height direction of the fixed frame, which is used to pressurize the battery core to be installed in the height direction; a vertical-direction adsorption mechanism 11 is provided on the bottom wall of the fixed frame. To absorb the battery core to be installed, lift it up after absorbing the battery core to be installed.

In this embodiment, the support frame is arranged above the PACK box, and a first rack transmission mechanism is provided on the measuring beam of the support frame. The first rack transmission mechanism is driven by the X-axis servo motor 1, and a third rack transmission mechanism is provided at both ends of the beam. A transmission gear, the gear rack cooperates with the transmission to move the cross beam on the measuring beam of the support frame, so as to adjust the cross beam to a suitable position above the PACK box.

During specific implementation, in order to improve the stability and ensure the safety and reliability of the device, the cross beam is a rectangular frame structure, and the second rack transmission mechanism is respectively provided on the beams on opposite sides of the frame. The second rack transmission mechanism Driven by the Y-axis servo motor 2; the two second rack transmission mechanisms are respectively provided with load-bearing sliding plates, and the inner walls of the two load-bearing sliding plates are respectively provided with two second rack gears adapted to the second rack transmission mechanism. Two transmission gears, and vertical driving devices are respectively provided on the outer walls of the two load-bearing sliding plates. Specifically, the driving device is a Z-axis servo electric cylinder 3.

The above-mentioned X-axis and Y-axis respectively use two servo motors to drive the rack and pinion transmission mechanism to achieve precise movement in the front, rear, left and right directions, and the Z-axis uses two servo electric cylinders to achieve precise movement in the height direction.

In this embodiment, the longitudinal pressing mechanism 4 includes a first servo motor fixed on the fixed frame, the output end of the first servo motor is connected to a first guide mechanism, and the first guide mechanism is connected to a plurality of A first pressure plate arranged in parallel is used to pressurize the battery core to be installed in the length direction under the driving of the first servo motor; the width direction pressure mechanism 7 includes a A second servo motor. The output end of the second servo motor is connected to a second guide mechanism. The second guide mechanism is connected to a plurality of second pressure plates arranged in parallel for driving the second servo motor. , pressurizing the battery core to be installed in the width direction; the height direction pressing mechanism 5 includes a third servo motor fixed on the fixed frame, the output end of the third servo motor is connected to the third guide mechanism, the The third guide mechanism is connected to a plurality of third pressure plates arranged in parallel, and is used to pressurize the battery core to be installed in the height direction driven by the third servo motor.

The multi-row and multi-column battery length, width and height are pressurized and shaped in three directions to meet the size requirements of battery products in all directions, and visual positioning is used to achieve accurate placement of batteries into PACK boxes.

On the opposite side of the above-mentioned pressurizing mechanism, a reference device is provided to provide a pressurization reference to ensure the reference position of the battery product. Specifically, the length direction reference device 8 includes a cam mechanism fixed on the fixed frame, the follower of the cam mechanism is connected to a spring, the spring is connected to the first reference plate, and the follower of the cam mechanism is connected to the first reference plate. It is used to squeeze the spring and push the first reference plate to move to the length direction reference position, and the first reference plate moves away from the length direction reference position under the resilience of the spring. When pressurizing the battery core, the cam mechanism compresses the spring and pushes the reference plate to move to the reference position. Next, the motor of the pressurizing mechanism drives the pressure plate to pressurize and shape the battery core. After the pressurization is completed, the above-mentioned The cam mechanism releases the spring, and the spring drives the reference plate away under the action of rebound force. The position of the reference plate in the length direction is not fixed, making it easy to pick and place the battery cells.

The width direction reference device 9 includes a first cylinder fixed on the fixed frame, the output end of the first cylinder is connected to the fourth guide mechanism, the fourth guide mechanism is connected to the second reference plate, and the The first cylinder is used to push the fourth guide mechanism, so that the fourth guide mechanism pushes the second reference plate to move to the width direction reference position. In the width direction, this embodiment preferably uses a cylinder to drive the reference plate to the reference position. The above-mentioned first guide mechanism, second guide mechanism, third guide mechanism and fourth guide mechanism in this embodiment can all adopt conventional guide mechanisms, such as the matching mechanism of slide rails and slide blocks.

In this embodiment, it also includes an adsorption mechanism 11 arranged in the Z-axis direction. The adsorption mechanism 11 includes a vacuum generator fixed on the fixed frame, a diverter device connected to the vacuum generator, and a plurality of elastic adsorption columns arranged on the diverter device. The plurality of elastic adsorption columns are arranged in an array. The cloth is fixed on the bottom wall of the fixing frame to form an adsorption surface for adsorbing the battery core to be installed. The adsorption mechanism 11 in the Z-axis direction prevents the pressurizing mechanism from being released when the battery is put into the box, and the battery collapses due to gravity, thereby ensuring the flatness of the batteries in multiple rows and columns in the Z-direction.

In this embodiment, a pocket bottom protection mechanism 6 is also included. The pocket bottom protection mechanism 6 includes a second cylinder fixed on the fixed frame. The output end of the second cylinder is connected to the active side of the linkage mechanism. The linkage The driven side of the lever mechanism is connected to the protective plate to drive the protective plate so that the protective plate is located below the adsorbed battery core to be installed. The bottom protection mechanism 6 uses a connecting rod mechanism to drive the protective plate. When the battery needs to be protected, the cylinder drives the connecting rod mechanism to move, so that the protective plate protects the battery under the battery and prevents the battery from falling; when protective measures are not needed , the cylinder drives the connecting rod mechanism to drive the protective plate away from the protective position to avoid interference with the movement of other mechanisms.

In this embodiment, a box entry guide mechanism 10 is also included. The box entry guide mechanism 10 includes a third cylinder arranged on the fixed frame. The output end of the third cylinder is connected to a guide rod. The third cylinder The guide rod is driven to move downward into the PACK box located under the fixing frame, so that the battery module to be installed enters the PACK box along the guide rod. End plates are fixedly arranged around the battery module to be installed, and a guide groove matching the shape of the guide rod is provided on the end plate. The guide rod is located in the guide groove, so that the battery core module to be installed can The core module enters the PACK box along the guide rod. The box-introduction guide mechanism 10 serves to guide the battery products during the process of batteries being put into the box.

The main components of the battery core pressurizing and shaping device according to the embodiment of the present invention include: 11. Box entry guide mechanism 10. Bottom protection mechanism 6. During operation of this embodiment, the X-axis and Y-axis use servo motors to drive the gear and rack transmission to achieve precise movement in the front, rear, left, and right directions, and the Z-axis uses dual servo electric cylinders to lift to achieve precise movement in the height direction. After running in place, the Z-axis double The servo electric cylinder is lowered into place, the reference side cylinder in the width direction is extended into place, the width direction electric cylinder pressurizes the width of the battery module in place, the length direction reference side cylinder is extended into place, and the length direction electric cylinder pressurizes the length of the battery module In place, the top adsorption mechanism 11 extends out to adsorb the battery module to ensure the height direction of the battery module. The Z-axis dual servo cylinder lifts the battery module to a safe height. The bottom protection mechanism 6 extends out of the bottom of the pocket. The X-axis servo motor 1 and Y-axis servo motor 2 drive the gear rack to move forward, left, and right to the position where the battery module is placed in the PACK box. Then, the PACK box is accurately positioned visually, the Z-axis dual servo electric cylinder is lowered into place, and the width-direction pressurized electric cylinder is retracted. The reference side cylinder in the width direction is retracted to its original position, the length direction pressurizing cylinder is retracted to a position where the pressure is zero, the box entry guide 10 is extended, and the actuator servo cylinder in the adsorption mechanism 11 pushes the battery module to the PACK box and pressurized. After the pressurization is completed, the longitudinal pressurizing electric cylinder retracts to the fully open state, the longitudinal reference side cylinder retracts to the position, the actuator servo electric cylinder in the adsorption mechanism 11 fully retracts, and the Z-axis dual servo electric cylinder rises to the position. The equipment operation of pressurizing and shaping the entire set of combined battery cells into the PACK box is completed.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. All are covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A battery core pressurizing and shaping device, which is characterized by including:

A support frame, which includes a rectangular support frame and support legs fixed under the support frame; first rack transmission mechanisms are respectively provided on two opposite side beams of the support frame;

Cross beam, the two ends of the cross beam are respectively provided with first transmission gears that cooperate with the first rack transmission mechanism, so that the cross beam can move on the side beams of the support frame; the side walls of the cross beam are provided with second rack transmission mechanism;

A load-bearing slide plate, the inner wall of the load-bearing slide plate is provided with a second transmission gear that cooperates with the second rack transmission mechanism, so that the load-bearing slide plate can move on the beam; the outer wall of the load-bearing slide plate is provided with a vertical Straight direction drive device;

The fixed frame is fixedly installed on the thrust output end of the driving device. The fixed frame is a rectangular frame. A lengthwise pressing mechanism is provided on one side of the lengthwise direction of the fixed frame for adjusting the length of the fixed frame. To pressurize the battery core to be installed, a length-direction reference device is provided on the other side in the length direction to provide a pressure reference on the opposite side of the length-direction pressurizing mechanism; a length-direction reference device is provided on one side of the fixing frame in the width direction. A width-direction pressurizing mechanism is used to pressurize the battery core to be installed in the width direction, and a width-direction reference device is provided on the other side of the width direction to provide a pressurization reference on the opposite side of the width-direction pressurization mechanism; The fixed frame is provided with a vertically downward pressing mechanism in the height direction, which is used to pressurize the battery core to be installed in the height direction; the bottom wall of the fixed frame is provided with a vertical adsorption mechanism, which is used to absorb the cells to be installed. To install the battery core, absorb the battery core to be installed and lift it up.
The battery core pressurizing and shaping device according to claim 1, wherein the longitudinal pressing mechanism includes a first servo motor fixed on the fixed frame, and the output end of the first servo motor is connected to a third servo motor. A guide mechanism, the first guide mechanism is connected to a plurality of first pressure plates arranged in parallel, and is used to pressurize the battery core to be installed in the length direction under the drive of the first servo motor;

The width direction pressing mechanism includes a second servo motor fixed on the fixed frame, the output end of the second servo motor is connected to a second guide mechanism, and the second guide mechanism is connected to a plurality of second servo motors arranged side by side. a pressure plate, used to pressurize the battery core to be installed in the width direction under the driving of the second servo motor;

The height direction pressing mechanism includes a third servo motor fixed on the fixed frame. The output end of the third servo motor is connected to a third guide mechanism. The third guide mechanism is connected to a plurality of third guide mechanisms arranged in parallel. The pressure plate is used to pressurize the battery core to be installed in the height direction driven by the third servo motor.
The battery core pressurizing and shaping device according to claim 2, characterized in that the length direction reference device includes a cam mechanism fixed on the fixed frame, the follower of the cam mechanism is connected to a spring, and the spring Connected to the first reference plate, the follower of the cam mechanism is used to squeeze the spring and push the first reference plate to move to the longitudinal reference position. The first reference plate returns when the spring returns. Under elastic force, it moves away from the reference position in the length direction;

The width direction reference device includes a first cylinder fixed on the fixed frame. The output end of the first cylinder is connected to the fourth guide mechanism. The fourth guide mechanism is connected to the second reference plate. A cylinder is used to push the fourth guide mechanism, so that the fourth guide mechanism pushes the second reference plate to move to the width direction reference position.
The battery core pressurizing and shaping device according to claim 2, characterized in that the adsorption mechanism includes a vacuum generator fixed on the fixing frame, a shunt device connected to the vacuum generator and a shunt device arranged on the shunt device. A plurality of elastic adsorption columns are arranged in an array and fixed on the bottom wall of the fixing frame to form an adsorption surface for adsorbing the battery core to be installed.
The battery core pressurizing and shaping device according to claim 2, further comprising a pocket bottom protection mechanism, the pocket bottom protection mechanism includes a second cylinder fixed on the fixed frame, the output end of the second cylinder The active side of the linkage mechanism is connected, and the driven side of the linkage mechanism is connected to the protection plate to drive the protection plate so that the protection plate is located below the adsorbed battery core to be installed.
The battery core pressurizing and shaping device according to claim 2, further comprising a box entry guide mechanism, the box entry guide mechanism including a third cylinder provided on the fixed frame, the third cylinder The output end is connected to a guide rod, and the third cylinder drives the guide rod to move downward into the PACK box located below the fixing frame, so that the battery module to be installed enters the PACK box along the guide rod.
The battery core pressurizing and shaping device according to claim 6, characterized in that end plates are fixedly arranged around the battery core module to be installed, and guide grooves adapted to the shape of the guide rod are provided on the end plates. , the guide rod is located in the guide groove, so that the battery module to be installed enters the PACK box along the guide rod.
The battery core pressurizing and shaping device according to claim 2, characterized in that the cross beam is a rectangular frame structure, and the second rack transmission mechanism is respectively provided on the beams on opposite sides of the frame, and the two The second rack transmission mechanism is provided with load-bearing sliding plates respectively. The inner walls of the two load-bearing sliding plates are respectively provided with two second transmission gears adapted to the second rack transmission mechanism. The outer sides of the two load-bearing sliding plates are respectively The walls are respectively provided with vertical driving devices.
The battery core pressurizing and shaping device according to claim 8, characterized in that the driving device is a Z-axis servo electric cylinder.
The battery core pressurizing and shaping device according to claim 1, wherein the first rack transmission mechanism is driven by an X-axis servo motor, and the second rack transmission mechanism is driven by a Y-axis servo motor.